Lockwood & Co. by Jonathan Stroud

Start reading at More about The Whispering Skull: In the six months since Anthony, Lucy, and George survived a night in the most haunted house in England, Lockwood & Co. hasn’t made much progress. Quill Kipps and his team of Fittes agents keep swooping in on Lockwood’s investigations. Finally, in a fit of anger, Anthony challenges his rival to a contest: the next time the two agencies compete on a job, the losing side will have to admit defeat in the Times newspaper. Things l